package com.wxt.blog.util;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import java.io.IOException;
import java.io.InputStream;

public class MyBatisUtil {
    private static SqlSessionFactory sqlSessionFactory;

    static {
        try {
            String resource = "mybatis-config.xml";
            InputStream inputStream = Resources.getResourceAsStream(resource);
            sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        } catch (IOException e) {
            throw new RuntimeException("初始化MyBatis失败", e);
        }
    }

    public static SqlSession getSession() {
        return sqlSessionFactory.openSession(true);
    }

    public static <T> T getMapper(Class<T> clazz) {
        return sqlSessionFactory.openSession(true).getMapper(clazz);
    }

    public static SqlSession getSession(boolean autoCommit) {
        return sqlSessionFactory.openSession(autoCommit);
    }
}